问题如下：
Assume a company is in the perfect competition, the least appropriate statement is:
选项：
A.If total revenue is larger than total variable costs, the company can still operate in the short run.
B.If the output is smaller than the quantity where marginal cost equals the market price, the company should decrease the production.
C.If the economic profit is positive in the short run, more entrants will come into the market until the economic profit is zero.
解释：
B is correct. The company will have maximized profit if marginal cost is equal to the market price. If the output level has not reached the equilibrium point, the company should increase the production.
考点：完全竞争市场
解析：如果边际成本等于市场价格，公司的利润就会最大化。如果产量水平没有达到平衡点，公司应该增加产量。所以B选项入选。
如果总收入小于总的可变成本，那么厂商应该在短期继续生产以弥补固定成本损失，A选项不入选。
如果完全竞争市场上出现了短期利润，那么由于没有进入壁垒限制，市场外的厂商会进入市场瓜分利润。C选项不入选。
可是A选项是TR>MC,大于的话长期也可以运营吧
